scholarly journals Molecular networking prospection and characterization of terpenoids and C15-acetogenins in Brazilian seaweed extracts

RSC Advances ◽  
2018 ◽  
Vol 8 (52) ◽  
pp. 29654-29661 ◽  
Author(s):  
Ana Cláudia Philippus ◽  
Gabriele A. Zatelli ◽  
Tauana Wanke ◽  
Maria Gabriela de A. Barros ◽  
Satomy A. Kami ◽  
...  
Keyword(s):  
Marine Algae ◽  
Molecular Networking ◽  
Seaweed Extracts

Molecular networking of Brazilian marine algae.

scholarly journals QUALITATIVE ANALYSIS OF PHYTOCHEMICALS IN SELECTED SEAWEEDS OF MANDAPAM COAST, RAMESWARAM, INDIA

2021 ◽  
pp. 144-160
Author(s):  
Maria Puspham Grace ◽  
M Rajithra R ◽  
V.Ilakkiya ◽  
Dr.B.Dhanalakshmi
Keyword(s):  
Tamil Nadu ◽  
Marine Algae ◽  
Industrial Applications ◽  
Drug Candidates ◽  
Seaweed Extracts ◽  
Isolation And Characterization ◽  
Turbinaria Conoides ◽  
Phytochemical Constituents ◽  
Area Unit

In the world, seaweeds or marine macro algae area unit is renewable living resources that are used as a several components like food, feed, and fertilizers. They are typically live hooked up to rock or alternative laborious substrata in coastal areas. Turbinaria found in tropical marine waters, which grows on rocky substrates. Turbinaria belongs to the class- Anthozoa, Order-Scleractinia, family-Dendrophylliidae, Genus- Turbinaria. The aim of the present study is the phytochemical analyses were evaluated for the marine algae Turbinaria conoides and Turbinaria ornate from Mandapam coast, Rameswaram, Tamil Nadu, India. To cope with the assessment of the chemical composition of assorted marine seaweeds were extracted from different solvents. The current study reveals that the seaweeds contain a high quantity of phytochemical constituents. Besides, the presence of alkaloids, terpenoids, steroids, tannins, saponins, flavonoids, phenols, coumarins, proteins, carbohydrates, quinones and glycosides from Turbinaria ornata and Turbinaria conoides. This report will lead to the isolation and characterization of these active secondary metabolites for bio-efficacy and bioactivity. Therefore, seaweed extracts possessed higher amount of phytochemicals and which proves that these selected seaweeds will have provide unique and novel metabolites of unprecedented structures, with antibacterial, antifungal, antiviral, anti-plasmodial, nematicidal, anti-inflammatory, anticancer, and anti-angiogenic activities, these bioactive compounds may provide high-quality drug candidates for pharmaceutical applications, as well as agricultural and industrial applications. KEYWORDS: Turbinaria, Coumarins, Seaweeds, Phytochemicals and Turbinaria conodies

Comprehensive structural characterization of phenolics in litchi pulp using tandem mass spectral molecular networking

2019 ◽  
Vol 282 ◽  
pp. 9-17 ◽  
Author(s):  
Qiang Lyu ◽  
Ting-Hao Kuo ◽  
Chongde Sun ◽  
Kunsong Chen ◽  
Cheng-Chih Hsu ◽  
...  
Keyword(s):  
Structural Characterization ◽  
Tandem Mass ◽  
Molecular Networking ◽  
Mass Spectral

scholarly journals Betaine Yields from Marine Algal Species Utilized in the Preparation of Seaweed Extracts Used in Agriculture

2010 ◽  
Vol 5 (4) ◽  
pp. 1934578X1000500 ◽  
Author(s):  
Gerald Blunden ◽  
Peter F. Morse ◽  
Imre Mathe ◽  
Judit Hohmann ◽  
Alan T. Critchley ◽  
...  
Keyword(s):  
Marine Algae ◽  
Algal Species ◽  
First Record ◽  
Commercial Production ◽  
The Other ◽  
Minor Constituent ◽  
Laminaria Digitata ◽  
Seaweed Extracts ◽  
Marine Algal ◽  
A Minor

Ascophyllum nodosum, and to a lesser extent, Laminaria digitata, L. hyperborea and Fucus serratus, are marine algal species utilized in the commercial production of seaweed extracts used in agriculture. Betaines have been shown to be important constituents of these extracts, but there appears to have been no study made on whether there are variations in the betaine contents of these species based on either the place or date of collection. Samples of each of the four species were collected from widely separated areas at different times of the year. Also, in the case of A. nodosum, approximately monthly collections were made from one location. The betaines detected in the various collections of the same species showed little variation, although in the case of A. nodosum, glycinebetaine was found as a minor constituent in some samples, but was not detected in others. Trigonelline was found in all the tested samples of the two Laminaria species; this is, to our knowledge, the first record of this betaine in marine algae. With the exception of trigonelline in the Laminaria species, the betaine yields from the various samples of L. digitata, L. hyperborea and F. serratus showed little variation, regardless of either the place or date of collection. The trigonelline contents of the Laminaria species collected at one location (Finavarra, Ireland), in particular of L. hyperborea, was substantially greater than those from the other places of collection. In the case of A. nodosum, the betaine yields from samples collected at one site (Dale, Pembrokeshire, UK) were significantly higher than those from the other places of collection, which were very similar to each other. There was no clear indication of seasonal variation in betaine yields from A. nodosum.

scholarly journals Optofluidic characterization of marine algae using a microflow cytometer

2011 ◽  
Vol 5 (3) ◽  
pp. 032009 ◽  
Author(s):  
Nastaran Hashemi ◽  
Jeffrey S. Erickson ◽  
Joel P. Golden ◽  
Frances S. Ligler
Keyword(s):  
Marine Algae ◽  
Microflow Cytometer

scholarly journals Oligosaccharides from Marine Algae-II. Purification and Characterization of Porphyran-Decomposing Enzymes from Arthrobacter sp. S-22.

1997 ◽  
Vol 63 (5) ◽  
pp. 757-764 ◽  
Author(s):  
Yukihiro Osumi ◽  
Masanobu Kawai ◽  
Hideomi Amano ◽  
Hiroyuki Noda
Keyword(s):  
Marine Algae ◽  
Purification And Characterization

Screening and preliminary characterization of hemagglutinins in Vietnamese marine algae

2008 ◽  
Vol 21 (1) ◽  
pp. 89-97 ◽  
Author(s):  
Hung Le Dinh ◽  
Kanj Hori ◽  
Nang Huynh Quang
Keyword(s):  
Marine Algae ◽  
Preliminary Characterization

Tropical Marine Algae. IX. A New Sesquiterpenoid Metabolite From the Red Alga Laurencia marianensis

1993 ◽  
Vol 46 (6) ◽  
pp. 933 ◽  
Author(s):  
R Denys ◽  
JC Coll ◽  
BF Bowden
Keyword(s):  
Natural Products ◽  
Marine Algae ◽  
Red Alga ◽  
Natural Products Chemistry ◽  
First Time

An investigation of the natural products chemistry of the red alga Laurencia marianensis Yamada, a species whose chemistry has not previously been described in the literature, yielded the new metabolite 1-[(3′S*,3a′lR*,4′R*,7′S*,7a′S*)-7′-bromo-7a′-methyl-3′-(1′-methylethyl)octahydro-1′H-inden-4′-yl] ethanone (1) and the known metabolites deoxyprepacifenol (2) and pacifenol (3). The full n.m.r. characterization of (2) and (3) is reported for the first time.

scholarly journals Advanced characterization of dissolved organic matter released by bloom-forming marine algae

2017 ◽  
Vol 69 ◽  
pp. 1-11 ◽  
Author(s):  
Z.U. Rehman ◽  
S. Jeong ◽  
S.A.A. Tabatabai ◽  
A,-H. Emwas ◽  
T. Leiknes
Keyword(s):  
Organic Matter ◽  
Dissolved Organic Matter ◽  
Marine Algae ◽  
Advanced Characterization

scholarly journals Preliminary phytochemical profile of Dictyota dichotoma (Huds.) Lamouroux collected from Koothankuzhi Coast, Tirunelveli district, Tamil Nadu, India

2018 ◽  
Vol 8 (6-s) ◽  
pp. 53-56
Author(s):  
Paul J John Peter
Keyword(s):  
Secondary Metabolites ◽  
Tamil Nadu ◽  
Cardiac Glycosides ◽  
East Coast ◽  
Phytochemical Analysis ◽  
Dictyota Dichotoma ◽  
Seaweed Extracts ◽  
Isolation And Characterization ◽  
Phytochemical Profile

The present study was intended to discover the preliminary phytochemicals of Dictyota dichotoma (Huds.) Lamouroux from Koothankuzhi coast, Tirunelveli district, the south east coast of Tamil Nadu, India. The preliminary phytochemical analysis was conducted in seven extracts namely methanol, acetone, chloroform, ethyl acetate, petroleum ether, hexane and benzene by Harborne method. The preliminary phytochemical analysis showed the presence of alkaloids, anthocyanin, anthraquinones, cardiac glycosides, catechin, coumarins, diterpenes, emodins, flavonoids, glycosides, leucoanthocyanin, lignins, phenols, phlobatannins, quinones, saponins, steroids, tannins, terpenoids and triterpenoids. Among the various phytochemicals studied, tannin showed the maximum presence, being found in seven different extracts and anthraquinones was observed in only one extract. From the results, it was noted that the extracts of Dictyota dichotoma (Huds.) Lamouroux was found to be the presence of a number of active secondary metabolites. This report will lead to the isolation and characterization of these active secondary metabolites for bioefficacy and bioactivity. Keywords: Phytochemical, Bioactive compounds, Seaweed extracts, Dictyota, Tamil Nadu.

scholarly journals Characterization of Lectin from Colpomenia Sinuosa and Effect of Physico Chemical Parameters on Haemagglutination Activity

2019 ◽  
Vol 8 (3S2) ◽  
pp. 844-848
Keyword(s):  
Marine Algae ◽  
Land Plants ◽  
Plant Tissues ◽  
Biological Applications ◽  
Carbohydrate Specificity ◽  
Chemical Parameters ◽  
Lectin Activity ◽  
Physico Chemical ◽  
Haemagglutination Activity

Lectin is a protein which has the ability to bind carbohydrates and named as haemagglutinin. Lectins with specific carbohydrate specificity have been purified from various plant tissues and other organisms and exploited extensively in many aspects of biochemistry and biomedicine. Similar to land plants, lectins from marine algae appear to be useful in some biological applications. Although several studies on lectins from marine algae have been reported till date, few lectins from algae have been characterized in detail. The present study was focused on the lectin isolated from C.sinuosa. The algal lectin has high sugar specificity with N-acetylglucosamine and higher enzyme activity with trypsin. This lectin was identified as CaCl2 dependent – ‘C’ type lectin and was sensitive to EDTA. Higher H.A titre value was observed with CaCl2 and the lower with MnCl2 and ZnCl2 . Significant lectin activity was observed between pH 7 to 8 and temperature between 20 to 40 O C

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